Prevalence of Intracranial Aneurysm in Hong Kong Chinese

Summary

Intracranial aneurysm (localized dilatation in weakened blood vessel wall) rupture is a
catastrophic disease, with half of the victims died and many of the survivors disabled.
There is currently no data in the literature for the Chinese population concerning the
prevalence, characteristics (location and size) and risk of harboring an unruptured
intracranial aneurysm. In this study, the investigators aim to study the population
prevalence and characteristics (location and size) of intracranial aneurysm in Hong Kong
Chinese, and its cost-effectiveness. The screening is carried out using magnetic resonance
angiography (MRA), with a 3-T magnetic resonance system, which is a well-established
non-invasive method for intracranial aneurysm detection.

Periprocedural symptomatic intracranial hemorrhage (sICH) unrelated to coil embolization of intracranial aneurysm has been rarely reported. The incidence and characteristics of this complication remai...

Saccular intracranial aneurysm (sIA) growth during follow-up is associated with high risk for subsequent rupture. Finnish patients have been suggested to have higher risk for subarachnoid hemorrhage, ...

Intracranial aneurysm surgery is commonly performed using pinned head holders, which pose a higher risk for the pediatric population. Several authors recommend avoiding the use of this device when it ...

Irregular shape is a known risk factor of intracranial aneurysm rupture causing subarachnoid hemorrhage. The objective of this study was to determine the impact of aneurysm shape on intraoperative rup...

The aim of this research was to study the factors influencing the formation of intracranial aneurysms with irregular morphology by observing the dynamic volume change rate of intracranial unruptured a...

Medical and Biotech [MESH] Definitions

Intracranial Aneurysm

Abnormal outpouching in the wall of intracranial blood vessels. Most common are the saccular (berry) aneurysms located at branch points in CIRCLE OF WILLIS at the base of the brain. Vessel rupture results in SUBARACHNOID HEMORRHAGE or INTRACRANIAL HEMORRHAGES. Giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the OCULOMOTOR NERVE. (From Adams et al., Principles of Neurology, 6th ed, p841)

Aneurysm due to growth of microorganisms in the arterial wall, or infection arising within preexisting arteriosclerotic aneurysms.

Aneurysm, False

Not an aneurysm but a well-defined collection of blood and CONNECTIVE TISSUE outside the wall of a blood vessel or the heart. It is the containment of a ruptured blood vessel or heart, such as sealing a rupture of the left ventricle. False aneurysm is formed by organized THROMBUS and HEMATOMA in surrounding tissue.

Endoleak

Postoperative hemorrhage from an endovascular AORTIC ANEURYSM repaired with endoluminal placement of stent grafts (BLOOD VESSEL PROSTHESIS IMPLANTATION). It is associated with pressurization, expansion, and eventual rupture of the aneurysm.

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